Mesons in non-local chiral quark models

Abstract

Vector meson correlators are studied in effective chiral quark models with both local and non-local regulators. A set of sum rules based on dispersion relations is derived, which allows for a comparison of model predictions to data. We show that the two Weinberg sum rules for vector correlators hold in the non-local model.Comment: 10 pp., presented at International Workshop on Hadron Physics: Effective Theories of Low-Energy QCD, 10-15 September 1999, Coimbra, Portuga